VA 550 – Thermal mass flow sensor for flow measurement
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- Stainless steel wetted parts ensure high cleanliness.
- Approved for flammable gases like hydrogen.
- Easy installation, low maintenance, minimal pressure loss.
Record and reduce your energy costs and increase your sustainability with the VA 550. Monitor your Consumption and analyse your leakage flows with just one measuring device. Due to its design, it is also ideal for Portable Measuring.
- All wetted parts are made of stainless steel, especially for applications with high demands on cleanliness and surface quality
- Robust aluminium housing enables use in harsh industrial environments
- Recommended for flammable gases such as Natural gas, hydrogen, Biogas, etc. due to ATEX or DVGW approval
- Measuring the mass flow, direct output of the Standarized volume flow
- Highly accurate for both small and large flows
- Pressure and temperature-compensated thanks to the thermal mass flow principle
- Quick and easy installation via a standard ½” Ball valve
- No moving parts, therefore Low maintenance
- Disappearingly low pressure loss, as the blockage of the diameter is negligible
Specs
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A versatile and highly precise flow measurement solution, ideal for gases, featuring easy installation, robust pressure and temperature handling, and advanced communication options.
Pipe Size
¾” to DN 1000 (insertion version)
Flow Range
Velocities up to 224 Nm/s
Accuracy
± 1.5% or ± 1% of measured value
± 0.3% of the final value
Pressure Range
Up to 50 bar (special version up to 100 bar)
Temperature Range
Media temperature up to 180°C (120°C for ATEX)
Outputs & Comms
04…20 mA, pulse, Modbus RTU (RS 485)
Optional: Modbus TCP (Ethernet), PoE, M-Bus
Approvals
Protection class IP67
IP64 for ATEX II 2D Ex tb IIIC T90°C Db
Connection Type
Integrated display for settings and counter reset
Additional Features
– Simple installation under pressure
– Adjustable settings via display buttons
– Main counter reset via display